Main variables;Total H.1 % enterprises with 3D printing;2.33 H.1.A % enterprises that used their own 3D printers (1);26.98 H.1.B % enterprises that used 3D printing services provided by another company (1);84.07 H.2.A % enterprises with 3D printing for sales models or prototypes (1);23.44 H.2.B % enterprises with 3D printing models or prototypes for internal use (1);30.00 H.2.C % enterprises with 3D printing models or prototypes products for sale, excluding prototypes or models (1);13.77 H.2.D % enterprises with 3D printing models or prototypes products for internal use, excluding prototypes or models (1);23.72